Ms. Owens assigned her students to create an electromagnet. The group that creates the electromagnet that pick ups the most paperclips wins the challenge. Morgan and Gracie are very excited and begin to plan their electromagnet design. Their materials include: various batteries, different sizes of iron nails, and a large roll of copper wire. Morgan and Gracie built their electromagnet and collected data shown as shown in the graph.
Morgan and Gracie won the challenge by picking up 45 paperclips. What did the winning electromagnet contain?
Responses
A a 6 V batterya 6 V battery
B a 3 V batterya 3 V battery
C a 4.5 V batterya 4.5 V battery
D a 1/5 V battery